The next number of the sequence

\[5, 10, 15, 20, 25..........\] is

Four bells ring at the intervals of \[5 , 6 , 8\] and \[9\] seconds. All the bells ring simultaneously at some time. They will again ring simultaneously after

Simplify \[\Bigg(\sqrt{2}+\frac{1}{\sqrt{2}}\Bigg)^2\]

For what value of \[\ast\], statement \[\left[\frac{\left(\ast\right)}{21}\times\frac{\left(\ast\right)}{189}\right]=1\] is correct?

A batsman scores \[30, 40\] and \[50\] runs in three consecutive matches. What is his average score?

A man buys a cycle for \[Rs.1400\] and sells it at a loss of \[15\%\]. What is the selling price of the cycle?

A can do a work in \[10\] days and B in \[15\] days. How many days will both take together to complete the work?

A boy completes a task in \[3\] days and gets \[Rs.660\]. What is the daily wage of the boy?

Two pipes A and B can fill a tank in \[10\] and \[15\] minutes respectively. If both the pipes are used together, then how long will it take to fill the tank?